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A QR code is a computer-readable identification that contains data about the item to which it is attached. The article demonstrates how to return the QR Code image as a response from ASP.Net Core API. The “QRCoder” DLL helps generate QR codes with just four lines of code in C#. The author provides this code and software ‘AS IS’, without warranty of any kind, express or implied, including but not limited to fitness for a particular purpose and non-infringement.